行业组件数据 · 2026

活动颚板

Movable jaw plate is the replaceable crushing surface in jaw crushers that moves against the fixed jaw to compress and break materials.

技术定义与适配语境
典型 活动颚板 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

The movable jaw plate is a critical wear component in jaw crushers, mounted on the swing jaw assembly. It forms the crushing chamber with the fixed jaw plate and moves in an elliptical motion to apply compressive force on feed material. Its geometry, tooth profile, and material composition directly influence crushing efficiency, product gradation, and operational costs. Designed for periodic replacement due to abrasive wear, it features mounting holes for secure attachment and may incorporate reversible designs to extend service life.

组件规格

定义
The movable jaw plate is a critical wear component in jaw crushers, mounted on the swing jaw assembly. It forms the crushing chamber with the fixed jaw plate and moves in an elliptical motion to apply compressive force on feed material. Its geometry, tooth profile, and material composition directly influence crushing efficiency, product gradation, and operational costs. Designed for periodic replacement due to abrasive wear, it features mounting holes for secure attachment and may incorporate reversible designs to extend service life.
工作原理
The movable jaw plate operates on the principle of compressive crushing. As the eccentric shaft rotates, it drives the swing jaw in a reciprocating elliptical motion. This movement brings the movable jaw plate periodically toward the fixed jaw plate, creating a narrowing gap that compresses trapped material until it fractures. The crushed material then falls through the discharge opening at the bottom during the retraction phase. The crushing action is primarily determined by the plate's tooth profile, which can be straight, corrugated, or toothed to optimize for different material types and desired product sizes.
材料
High manganese steel (Mn13Mn18Cr2)alloy steel with chromium (Cr) and molybdenum (Mo) additionsor composite materials with ceramic inserts. Typical specifications include ASTM A128 Grade B3/B4DIN 1.3401or equivalent wear-resistant steel grades with hardness ranging from 200-400 HB and impact toughness exceeding 100 J/cm².
Weight
100-2000 kg
Thickness
50-200 mm
Service Life
200-1000 operating hours depending on material abrasiveness
Tooth Height
20-80 mm
Mounting Hole Pattern
Standardized (e.g., 4-8 holes)
标准
ISO 21873-1DIN 22101

行业分类与别名

活动颚板 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Abrasive wear from hard feed materials->Reduced crushing capacity and poor product size distribution->Use wear-resistant materials, implement regular inspection schedules, optimize feed size distribution
Fatigue stress from cyclic compressive loads->Crack propagation and catastrophic plate fracture->Design with proper radius transitions, use materials with high impact toughness, avoid over-tightening mounting bolts
Corrosion in wet processing environments->Accelerated wear and pitting corrosion->Apply protective coatings, use corrosion-resistant alloys, ensure proper drainage in crushing chamber

工业生态与工程逻辑

0
Premature wear from improper material selection
1
Fatigue cracking due to cyclic loading
2
Improper mounting causing plate detachment
3
Reduced crushing efficiency from worn profiles

合规与检测

tolerance
±1.5 mm on critical dimensions, surface flatness within 0.2 mm/m
test method
Dimensional inspection per ISO 2768-m, hardness testing per ASTM E10, non-destructive testing (UT/MT) per ASTM E709

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制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

How often should movable jaw plates be replaced?

Replacement frequency depends on material abrasiveness, feed size, and crusher settings. Typically, plates last 200-1000 hours. Monitor for reduced throughput, increased power consumption, or poor product gradation as replacement indicators.

Can movable jaw plates be reversed to extend life?

Yes, many designs are reversible. When the crushing surface wears, the plate can be flipped 180 degrees to utilize the opposite edge, effectively doubling service life before replacement.

What materials are best for crushing abrasive rocks?

High manganese steel (Mn18Cr2) or chromium-alloyed steels offer optimal wear resistance for highly abrasive materials like granite or basalt. Composite plates with ceramic inserts provide superior performance in extreme conditions.

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CNFX Industrial Component Index · 机械和设备制造

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URN:CNFX:ME:UNIT:MOVABLE_JAW_PLATE